I'm trying to edit "Custom member title" in my profile . But when I click to save changes, I get this(No matter what column I try to edit, besides CMtitle) : Sorry, an error occurred. If you are unsure on how to use a feature, or don't know why you got this error message, try looking through the help files for more information.
The error returned was:
You entered an illegal date for your birthday. You may have chosen 30th February, for example.
I've never edited my birth date.
Thanks for reading this.